Rika is one of Sakura Kinomoto's classmates in school. She, along with Chiharu Mihara and Naoko Yanagisawa, often appear alongside Sakura at school and during school events.
Rika is very elegant and mature for her age, although she can be very shy, especially when it comes to speaking to her teacher, Yoshiyuki Terada. Rika is also a skilled cook, able to bake cakes and cookies with ease. She cannot swim very well at all, as evidenced in the Episode of 63 when she almost drowned, one of the throughout one of Eriol Hiiragizawa's magical trials.